Whip roll stand bracket



W. H. BAHAN WHIP ROLL STAND BRACKET June 24, 1941.

Filed Sept. 19, 1940 WILLIAM H. BHHQN l'mver'ltor Gttorneg s Patented June 24, 1941 nire sra'rss 3 Claims.

rIhis invention relates to `textile machinery and more especially to an improved means for supporting a whip roll on a loom.

In many loom structures, the warp is drawn upwardly from a warp beam in a substantially vertical direction and then over a whip roll, after which it passes in a horizontal direction through suitable drop wires, and heddles. The shed is formed by the heddles for the deposit of the weit. The whip roll is mounted for oscillation about a pivot so that it can be raised or lowered to compensate for the variation of` the tension in the warp. For example, when a shed is formed so that the shuttle can pass therethrough, the tension in the warp will be very much greater than will bethe case when there is no shed; consequently, the whip roll must raise or lower to apply or relieve tension respectively as the occasion demands.

The whip roll pivot or shaft is usually supported by a pair of brackets, one on each loom frame. In the conventional structure, each of these brackets has a plurality oi notches in the upper end thereof, into which the whip roll pivot is adapted to rest. When it is desired to adjust the position of the whip roll in a warpwise direction, it is necessary to remove the whip roll pivot or sha-it from one pair of notches into another pair of notches in a warp-wise direction. Due to the construction of the brackets made heretofore, it was necessary to provide opposite hand brackets thereby making it necessary to have two different brackets for each loom, thus increasing the pattern cost, the stock and the likelihood oi an error, when placing the same on the loom.

It is an object of this invention to provide a whip roll supporting means which will t equally well on each side of the loom thereby eliminating the necessity of having opposite hand brackets. More specifically, it is an object of this invention to provide a whip roll stand support comprising an angle bracket having its horizontally disposed flange adjustably supporting a shoe which in turn supports the whip roll shaft. This type of structure permits the shoe, the whip roll and its associated shaft to be moved longitudinally of the warp the desired amount. Also since the faces of the angle brackets are symmetrical about a vertical axis, they are identical and therefore interchangeable.

Some of the objects of the invention having been stated, other objects will appear as the description proceeds, when taken in connection with the accompanying drawing, in which- Figure 1 is a side elevation oi a portion of a loom showing my improved whip roll bracket associated therewith;

Figure 2 is a plan view taken along the line 2 2 in Figure 1;

Figure 3 is a sectional plan view taken alongY the line 3--3 in Figure l;

Figure 4 is an exploded isometric View showing the twomain portions which make up the whip roll supporting mechanism;

Figure 5 is an isometric View of a slightly modied form of shoe which may be used for supporting the Whip roll shaft or pivot, in connection with the bracket shown in the lower portion of Figure 4.

Referring more specifically to the drawing, the

` numeral lll denotes a side france of a loom having mounted therein a let-01T beam il, said letoff beam having warp material I2 wound thereon. This warp emanatesin a sheet form i4 and passes vertically upwardly and over whip roll l5. i From the whip roll the warp id passes horizontally through suitable heddles, not shown, for the purpose of forming sheds in a weaving operation. The ends of the whip roll i5 are adapted to be placed in one of the pairs ci notches i8 in arms Iii. These arms I9 are Xed upon whip roll shaft 20, said shaft having its ends mounted for oscillation in notches 2| in bracket22, there being one bracket at each end of the shaft 2d. The bracket 22 has suitable holes 23 therein and these holes are penetrated by vertically disposed bolts 24, Bolts 24 also penetrate slots 25 in the horizontal flanges 26 oi second brackets 2l, said second bracket having a vertically disposed leg 28 which is adapted to fit into close contact with the inside portion of the loom frame Ill (see Figure 3).

Leg 28 has suitable projections 30 extending from one face thereof and these projections fit between the anges ina and Ilib oi the loom frame lil so as to prevent rotative movement of the bracket. Also the leg 28 has a hole 3l therein, which hole is penetrated by a bolt 32, and the bolt 32 also penetrates a slot 33 in the loom frame l0. It is seen that the projection 3U together with the bolt 32 serves to firmly hold the second bracket 21 in position on the side frame I0 of the loom.

Particular attention is called to the fact that` the opposed faces of the angle bracket 21 are symmetrical about a vertical center line when viewing the same from the broad faces; that is, when looking towards the side frame of the loom. This type of construction permits the brackets 2l to be interchangeable thereby eliminating the necessity of having opposite-hand construction. The purpose of providing the notches l5 in the arm i9 is to allow large warpwise adjustment of the whip roll l5 as the occasion demands. Any adjustment which might be smaller than the distance between the notches I 8 can be compensated for by loosening the bolts 24 and moving the upper brackets 22 the desired amount. Of course when the bracket 22 is moved an incremental amount, the whip roll I5 will also be moved. It is therefore seen that by providing an improved whip roll supporting means of this type that incremental adjustment as to the whip roll in a warp-wise direction of the loom can be had, and also that a bracket made from the same pattern can be used on either side of the loom.

The whip roll shaft 2t has on its extreme end,

a whip roll arm 35 which extends downwardly i and is adapted to contact a whip roll cam 36 on crank shaft 3l. When the shed is opened the maximum amount, it is necessary for the low side of the cam 36 to be in engagement with the whip roll arm, because at this time the whip roll l5 should be lin lowermost position so as to allow the maximum amount of slack in the warp; whereas when there is no shed, as in case of the beat-up of the lay, it is necessary that the high side of the cam 36 engage the whip roll arm 35 in order to elevate the whip roll l5 and take up excessive slack which results from the absence of a shed in the warp.

Figure 5 shows a slightly modied form of upper bracket or shoe which is designated by the reference character 4S. This bracket is identical to the bracket 22 in the upper portion of Figure 4, except that a hole or bore 2id is provided instead of a trench or notch 2|. In some types of loom structures, it is desirable to have the shaft conned in association with the upper brackets; whereas in other types of loom structure, it is desirable to have this shaft easily removable- The other portions of the bracket are identical to the upper bracket 22 previously described, and therefore like reference characters will be given to like parts.

In the drawing and speciiication, there has been set forth a preferred embodiment of the invention, and although specic terms are employed, they are used in a generic and descriptive sense only and not for purposes of limitation, the

scope of the invention being set forth in the appended claims.

I claim:

l. In a loom having a whip roll over which a warp is adapted to pass, said roll being oscillatably mounted about a shaft, and said loom having a pair of spaced frames, means for supporting the ends of said shaft comprising a vertically adjustable bracket secured to each of said frames7 said bracket having a laterally projecting flange with a warpwise slot therein, a second bracket resting over said slot in said nrst bracket and being adapted to carry said shaft, and a bolt penetrating said slot and said second bracket whereby said second bracket is held in adjusted position on said rst bracket.

2. In a loom having a whip roll over which a warp is adapted to pass, said roll being oscillatably mounted about a shaft and said loom having a pair of spaced frames, means for supporting the ends of said shaft comprising an angle bracket having a vertical leg, one face of which is secured for vertical adjustment to each or" said frames, said angle bracket also having a horizontal leg with a warpwise slot therein, the slot and legs of the bracket being symmetrical about a vertical line when looking at the face of said vertical leg, a second bracket resting on said horizontal leg and being adapted to carry said shaft, and a bolt penetrating said slot and said second bracket whereby said second bracket is held in adjusted position on said first bracket.

3. In a loom having a whip roll over which a warp is adapted to pass, a pair of levers, each having a plurality of notches therein, into which the ends of the whip roll are adapted to rest, an oscillatable shaft, said levers having one end thereof xed upon said shaft and each notch in each lever having a corresponding notch in the other lever disposed the same distance away from said shaft, a pair of brackets for supporting the ends of said shaft, a second pair of brackets for supporting said first pair of brackets, each of said second brackets having a warpwise slot therein, a bolt penetrating said first bracket and said warpwise slot, whereby incremental warpwise adjustment of said shaft can be eiected by moving said iirst bracket upon said second bracket, and whereby the larger warpwise adjustment can be eiected by moving the ends of the whip roll in a different set of notches in said levers.

WILLIAM H. BA1-IAN. 

